Russian President Vladimir Putin's decision this week to limit natural gas supplies to Europe threatens to hit the most vulnerable spot in European leaders - the ballot box.
The authors argue that French leader Emmanuel Macron will be the first to face the problem.
Opinion polls show that his candidates in the final round of parliamentary elections are gaining about the same number of votes as rivals who "criticize Macron because of inflation."
Journalists reminded that elections in the near future will also be held in Germany and Italy.
On June 13, the counting of votes for the first round of elections to the French parliament ended.
Macron's coalition "Together!"
bypassed Jean-Luc Mélenchon's New People's Ecological and Social Union by 0.1%.